<<The downwards component of molecules colliding is represented as pressure on the bottom surface of the cabin (like the Tornado)>>
If the air in a cylinder is compressed by a downwards motion of, say a piston for instance, the pressure is exerted equally in all directions, not just downwards. It is not possible to exert a pressure in one direction on a fluid (or gas)
An aerofoil generates most of the movement of the air molecules on the upper wing surface, and that is not in a downward direction anyway.